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Finding the Fourth Proportional to 130,392, 179,949.96 and 73,803.60

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Solution

The fourth proportional to 130,392, 179,949.96 and 73,803.60 is: 101,854.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,392 : 179,949.96 = 73,803.60 : x
  2. Step 2: Convert to fraction form
    130,392/179,949.96 = 73,803.60/x
  3. Step 3: Cross multiply
    130,392x = 179,949.96 × 73,803.60
  4. Step 4: Simplify right side
    130,392x = 13,280,954,867.86
  5. Step 5: Solve for x
    x = 13,280,954,867.86/130,392
  6. Step 6: Final answer
    x = 101,854.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.